package cn.kgc.aop;

import org.apache.log4j.Logger;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.springframework.stereotype.Component;

import java.util.Arrays;

@Component
@Aspect
public class AopLogger {
    @Pointcut("execution(* cn.kgc.service.*.*(..))")
    public void pointcut() {}
    private static Logger log= Logger.getLogger(AopLogger.class);
    @Before("pointcut()")
    public void before(JoinPoint jp) {
        log.info("调用 " + jp.getTarget() + " 的 " + jp.getSignature().
                getName() + " 方法。方法入参：" + Arrays.toString(jp.getArgs()));
    }
    @AfterReturning(pointcut = "pointcut()", returning = "result")
    public void afterReturning(JoinPoint jp, Object result) {
        log.info("调用 " + jp.getTarget() + " 的 " +  jp.getSignature().
                getName() + " 方法。方法返回值：" + result);
    }
}
